If the average of x +3,x+6 and x + 9 is 0, then x = A. 4 B. -6 C. 3 D. 0 0 0 votes Article Rating Subscribe Login Notify of new follow-up comments new replies to my comments Label {} [+] Name* Email* Label {} [+] Name* Email* 0 Comments Oldest Newest Most Voted Inline Feedbacks View all comments